The Patented Hollow Point® Intonation System, is a replacement guitar part specifically designed to help players, technicians, or anyone performing guitar repair, to set the intonation on a double locking guitar tremolo accurately and efficiently. Constructed of solid brass, the Hollow Point® Intonation System is proudly designed in the USA.  In addition to increasing the efficiency and ease of set-up, other benefits include improved appearance, increased mass, sustain and tone! The Hollow Points® are made to reto fit most Floyd Rose® and Ibanez® Edge® Double Locking Tremolo systems.